Multiple Choice
Can the atomic mass of an element vary?
A) No, it is fixed; otherwise a new element will be formed.
B) Yes. Adding or losing electrons will substantially change the atomic mass.
C) Yes. Adding or losing protons will change the atomic mass without forming a different element.
D) Yes. Adding or losing neutrons will change the atomic mass without forming a different element.
Correct Answer:
Verified
Correct Answer:
Verified
Q2: Elements ⁷²Zn, ⁷⁵As, and ⁷⁴Ge have the
Q3: Refer to the following figure to answer
Q4: In the following structure where A and
Q5: Molybdenum has an atomic number of 42.
Q9: Which of the following are compounds?<br>A) H₂O,
Q10: Refer to the following figure to answer
Q11: Which bond or interaction would be difficult
Q12: When are atoms most stable?<br>A) when they
Q31: What is the atomic number of the
Q41: Atoms have no electric charge because they